51350465399 has 2 divisors, whose sum is σ = 51350465400. Its totient is φ = 51350465398.

The previous prime is 51350465393. The next prime is 51350465407. The reversal of 51350465399 is 99356405315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51350465399 - 2²⁴ = 51333688183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51350465393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675232699 + 25675232700.

It is an arithmetic number, because the mean of its divisors is an integer number (25675232700).

Almost surely, 2^51350465399 is an apocalyptic number.

51350465399 is a deficient number, since it is larger than the sum of its proper divisors (1).

51350465399 is an equidigital number, since it uses as much as digits as its factorization.

51350465399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187000, while the sum is 50.

The spelling of 51350465399 in words is "fifty-one billion, three hundred fifty million, four hundred sixty-five thousand, three hundred ninety-nine".